TST: New Content – Stories
Science
Story
First Animal Teeth
439 Million years ago (+/- 1 million)
Evolution of Dental Specialization
Teeth first evolved in a common fish ancestor to reptiles, dinosaurs, and mammals. Dinosaurs and mammals inherited the same basic teeth but shaped them in different ways for different lives.
Thu 1 Oct 2026
(4 days ago)
Updated 4 days ago.
PRESTWOOD COLUMN
01 Sep 2026
Debut
Philosophy
Story
Hume’s Is–Ought Problem
1741
David Hume
Ethical Values
Good thinking separates facts from values. When an argument moves from what is true to what we ought to do, look for the hidden value premise.
Tue 1 Sep 2026
(1 month ago)
Updated 1 month ago.
PRESTWOOD COLUMN
01 Jul 2026
Debut
History
Story
The famous Lewis “Truth in Fiction” Paper
1978
by David K. Lewis
Philosophy of Fiction
Fictional statements can be “true” inside an invented world, even when they are not true in actual history.
Wed 1 Jul 2026
(3 months ago)
Updated 3 months ago.
History
Story
R. G. Collingwood
1889
Philosophy of History
Collingwood helped show that history is not just collecting facts. It is the disciplined reconstruction of past human thought and action from surviving evidence.
Sun 7 Jun 2026
(4 months ago)
Updated 5 months ago.
Critical Thinking
Story
Rudolf Steiner
Lived from 1861 to 1925, aged 64.
Anthroposophy and Spiritual Science
Spirituality
Waldorf schools often use natural play spaces because Steiner’s education valued nature, sensory experience, imagination, and the development of the whole child.
Thu 4 Jun 2026
(4 months ago)
Updated 4 months ago.
Science
Story
Last Non-Cynodont Therapsids
~205 Million years ago
Mammal Evolution
Dicynodonts were late-surviving non-cynodont therapsids: mammal-side animals, but not on the direct road to mammals.
Sat 23 May 2026
(5 months ago)
Updated 5 months ago.
Science
Story
Last Non-Mammaliaform Cynodonts
~125 Million years ago
Mammal Evolution
Tritylodontids were not mammals, but they were late-surviving mammal-side cousins that carried many mammal-like traits without crossing into the mammaliaform line.
Sat 23 May 2026
(5 months ago)
Updated 5 months ago.
Science
Story
First Therapsids
~272 Million years ago
A more upright posture.
Mammal Evolution
Therapsids mark the point where the mammal-side branch became more active, more specialized, and more clearly aimed toward the later mammal body plan.
Sat 23 May 2026
(5 months ago)
Updated 5 months ago.
Science
Story
Last Non-Mammal Mammaliaforms
~66 Million years ago (tentative placeholder date)
Mammal Evolution
Not every mammaliaform became a mammal; some were late-surviving side branches near the mammal line.
Sat 23 May 2026
(5 months ago)
Updated 5 months ago.
Science
Story
First Crown Mammals
~165 Million years ago (+/- 5 million)
Mammal Evolution
Crown mammals are the branch that includes the common ancestor of all mammals alive today and every descendant of that ancestor.
Sat 23 May 2026
(5 months ago)
Updated 5 months ago.
Science
Story
First Cynodonts
~260 Million years ago
Mammal-like jaw and breathing.
Mammal Evolution
Cynodonts were a more advanced branch of therapsids where the mammal-like jaw, teeth, palate, and breathing package began to come together.
Sat 23 May 2026
(5 months ago)
Updated 5 months ago.
Science
Story
Last Non-Therapsid Synapsids
~262 Million years ago (+/- 2 million)
Not upright like Therapsids.
Mammal Evolution
Late caseids represent the fading old-line synapsids: still mammal-side animals, but not yet therapsids.
Thu 21 May 2026
(5 months ago)
Updated 5 months ago.